Preston FI + Z, Руководство пользователя

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The calibration and run currents for the 3 channels are:
IRIS: 650mA/900 mA
FOCUS: 900 mA/ 1.2 A
ZOOM: 800mA/1.2A
To protect the motor from overheating due to a sustained stall condition, the processor will
shut down motor drive if a motor is stalled for more than approximately 5 seconds. The
system can be reset by either removing power momentarily or by unplugging and re-
plugging the LEMO connector going to the motor. If the motor consistently stalls due to
excessive load, do not reconnect the motor until the mechanical problem is resolved.
If the motor housing is greater than 60
q
C (140
q
F), allow the unit to cool until the housing is
less than 40
q
(100
q
F). Otherwise permanent motor damage can occur.
b.
Troubleshooting Guide
Symptom Check
1. Motor doesn’t turn
Power light on MDR and Hand Units
If motor calibrates, check communication with Hand Unit:
i. Press the Reset switches on the Hand Unit
ii. If in wireless mode, check that the Transmitter
and Transceiver are set to the same channel. Check
that the correct antennas are installed. Make sure
that the Transmitter has a green light – if not replace
the battery with a fully charged unit. Check that the
Cable/Radio switch on the Transceiver is in the
Radio position.
iii. Try operating in the Cable mode. Remove the
Transmitter from the Hand Unit, and use a
command cable to connect the Hand Unit to the
MDR. Set the Cable/Radio switch to Cable.
2. Motor rotation isn’t smooth.
Observe the motor rotation when it isn’t coupled to the
lens. If it turns smoothly, check that the lens gear turns
smoothly. Examine the teeth on both the lens and motor
for damage.
If the motor doesn’t turn smoothly when it isn’t driving the
lens, substitute another motor. If the same symptom
persists with the other motor, operate in the Cable Mode
as described above. If the symptom disappears with the
new motor, the original unit should be sent in for service.
If the motor turns smoothly in cable mode, check the
antennas for damage. See if the symptoms change as the
distance between the Transmitter and MDR change. If the
roughness goes away as the separation distance becomes
smaller, the problem could be due to a bad antenna or a
damaged component in the Transceiver.
3. Transmitter LED is RED
Replace the battery pack with a freshly charged unit.
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